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Items where Author is "Tehranchi, Amirhossein"

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Number of items: 51.

2023

Thomas, J., Meyneng, T., Tehranchi, A., Gregoire, N., Karpov, V., Seletskiy, D., Messaddeq, Y., & Kashyap, R. (2023). Anti-Stokes cooling in highly ytterbium doped phase separated aluminium-yttrium oxide glass by 4 K. Optical Materials, 144, 8 pages. External link

Thomas, J., Meyneng, T., Tehranchi, A., Gregoire, N., Monet, F., Seletskiy, D., Messaddeq, Y., & Kashyap, R. (2023). Demonstration of laser cooling in a novel all oxide GAYY silica glass. Scientific Reports, 13(1), 11 pages. External link

Tehranchi, A., & Kashyap, R. (2023). Extremely Efficient DFB Lasers with Flat-Top Intra-Cavity Power Distribution in Highly Erbium-Doped Fibers. Sensors, 23(3), 10 pages. External link

2022

Thomas, J., Meyneng, T., Tehranchi, A., Manarazan, P., Monet, F., Boisvert, J.-S., Morency, S., Grégoire, N., Seletskiy, D., Messaddeq, Y., & Kashyap, R. (2022, January). Characteristics of Yb-doped silica fibers containing Y2O3 nanoparticles for optical refrigeration [Paper]. Photonic Heat Engines : Science and Applications IV, San Francisco, CA, USA (5 pages). External link

Thomas, J., Meyneng, T., Gregoroire, N., Monet, F., Tehranchi, A., Seletskiy, D., Messaddeq, Y., & Kashyap, R. (2022, July). Laser cooling of a novel GAYY glass at atmospheric pressure [Paper]. Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials (BP 2022), Maastricht, Netherlands. External link

Tehranchi, A., & Kashyap, R. (2022). Performance Improvement of Ultra-short Distributed Feedback Fiber Lasers by Engineering of Coupling Coefficient Profiles. IEEE Journal of Quantum Electronics, 58(1), 1-7. External link

2021

Hlil, A. R., Thomas, J., Garcia-Puente, Y., Boisvert, J.-S., Lima, B. C., Rakotonandrasana, A., Maia, L. J. Q., Tehranchi, A., Loranger, S., Gomes, A. S. L., Messaddeq, Y., & Kashyap, R. (2021). Structural and optical properties of Nd:YAB-nanoparticle-doped PDMS elastomers for random lasers. Scientific Reports, 11(1), 16803 (10 pages). Available

2020

Tehranchi, A., & Kashyap, R. (2020). Gratings with longitudinal variations in coupling coefficients: super-efficiency and unidirectionality in distributed feedback Raman fiber lasers. New Journal of Physics, 22(10), 103022 (10 pages). Available

2019

Tehranchi, A., Iezzi, V. L., & Kashyap, R. (2019). Power Fluctuations and Random Lasing in Multiwavelength Brillouin Erbium-Doped Fiber Lasers. Journal of Lightwave Technology, 37(17), 4439-4444. External link

Tehranchi, A., Iezzi, V. L., & Kashyap, R. (2018, July). Temporal instability and random lasing in a brillouin fiber laser [Paper]. Nonlinear Optics (NLO 2019), Waikoloa Beach, HI, United states. External link

Tehranchi, A., & Kashyap, R. (2019). Theoretical investigations of power fluctuations statistics in Brillouin erbium-doped fiber lasers. Optics Express, 27(26), 37508-37515. External link

2018

Tehranchi, A., Loranger, S., & Kashyap, R. (2018). Engineered π-phase-shifted fiber Bragg gratings for efficient distributed feedback Raman fiber lasers. IEEE Journal of Quantum Electronics, 54(3), 1-7. External link

Loranger, S., Tehranchi, A., Winful, H., & Kashyap, R. (2018). Realization and optimization of phase-shifted distributed feedback fiber Bragg grating Raman lasers. Optica, 5(3), 295-302. External link

2017

Bostani, A., Tehranchi, A., & Kashyap, R. (2017). Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal. Scientific Reports, 7(1). Available

Tehranchi, A., Iezzi, V. L., Loranger, S., & Kashyap, R. (2017, July). Control of stokes waves in a Brillouin-erbium highly-nonlinear-fiber laser [Paper]. Advanced Photonics, Sensors 2017, New Orleans, Louisiana. External link

Lambin Iezzi, V., Tehranchi, A., Kashyap, R., & Loranger, S. (2017, July). Short cavity multi stokes Brillouin-erbium fiber laser [Paper]. Nonlinear Optics, Waikoloa, Hawaii. External link

2016

Iezzi, V. L., Büttner, T. F. S., Tehranchi, A., Loranger, S., Kabakova, I. V., Eggleton, B. J., & Kashyap, R. (2016). Temporal characterization of a multi-wavelength Brillouin–erbium fiber laser. New Journal of Physics, 18(5), 1-11. Available

Tehranchi, A., Ahlawat, M., Bostani, A., & Kashyap, R. (2016). Flexible All-Optical Wavelength Shifters Using Strong Focusing in a Wideband Engineered PPLN. IEEE Photonics Technology Letters, 28(18), 1924-1927. External link

2015

Bostani, A., Ahlawat, M., Tehranchi, A., Morandotti, R., & Kashyap, R. (2015). Design, fabrication and characterization of a specially apodized chirped grating for reciprocal second harmonic generation. Optics Express, 23(4), 5183-5189. External link

Bostani, A., Gagne, M., Tehranchi, A., & Kashyap, R. (2015, July). Full bandwidth frequency doubling of a high-power CW fiber laser using a bulk aperiodically poled LN [Paper]. Nonlinear Optics (NLO 2015), Kauai, HI. External link

Hu, Y., Tehranchi, A., Wabnitz, S., Kashyap, R., Chen, Z., & Morandotti, R. (2015). Improved Intrapulse Raman Scattering Control via Asymmetric Airy Pulses. Physical Review Letters, 114(7), 073901 (5 pages). External link

2014

Kashyap, R., Bostani, A., & Tehranchi, A. (2014). Grating structures with specifically located domain-inverted regions. (Patent Application no. WO2014176690). External link

Hu, Y., Tehranchi, A., Wabnitz, S., Chen, Z., Kashyap, R., & Morandotti, R. (2014, July). Intra-pulse Raman scattering controlled via asymmetric airy pulses [Paper]. Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides (BGPP 2014), Barcelona, Spain. External link

Bostani, A., Ahlawat, M., Tehranchi, A., Morandotti, R., & Kashyap, R. (2014, July). SHG response reciprocity for a specially-designed step-chirped grating [Paper]. Nonlinear Photonics (NP 2014), Barcelona, Spain. External link

Hu, Y., Tehranchi, A., Wabnitz, S., Chen, Z., Kashyap, R., & Morandotti, R. (2014, June). Tunable raman soliton self-frequency shift via an asymmetric airy pulse [Paper]. CLEO: QELS Fundamental Science (CLEO-QELS 2014), San Jose, CA, United states. External link

Ahlawat, M., Bostani, A., Tehranchi, A., & Kashyap, R. (2014, July). Tunable wavelength shifters using tight focusing in a wideband engineered PPLN crystal [Paper]. Nonlinear Photonics (NP 2014), Barcelona, Spain. External link

2013

Ahlawat, M., Bostani, A., Tehranchi, A., & Kashyap, R. (2013). Agile multicasting based on cascaded X(2) nonlinearities in a step-chirped periodically poled lithium niobate. Optics Letters, 38(15), 2760-2762. External link

Bostani, A., Ahlawat, M., Tehranchi, A., Morandotti, R., & Kashyap, R. (2013, June). Effect of a tightly focused gaussian beam on the broadband SHG response of chirped poled lithium niobate [Paper]. Conference on Lasers and Electro-Optics (CLEO 2013), San Jose, CA, USA. External link

Kashyap, R., & Tehranchi, A. (2013). Quasi-phase-matched wavelength converter. (Patent no. US8411353). External link

Bostani, A., Ahlawat, M., Tehranchi, A., Morandotti, R., & Kashyap, R. (2013). Tailoring and tuning of the broadband spectrum of a step-chirped grating based frequency doubler using tightly-focused Gaussian beams. Optics Express, 21(24), 29847-29853. External link

Ahlawat, M., Bostani, A., Tehranchi, A., & Kashyap, R. (2013, June). Temperature-independent flexible broadcasting based on cascaded X(2) nonlinearities in a broadband type-0 step-chirped PPLN [Paper]. CLEO: Science and Innovations (CLEO-SI 2013), San Jose, CA, United states. External link

Ahlawat, M., Bostani, A., Tehranchi, A., & Kashyap, R. (2013). Tunable single-to-dual channel wavelength conversion in an ultra-wideband SC-PPLN. Optics Express, 21(23), 28809-28816. External link

2012

Bostani, A., Tehranchi, A., & Kashyap, R. (2012, June). Engineering of apodized chirped gratings based on desired second-order nonlinearity function [Poster]. Access Networks and In-house Communications, Colorado Springs, CO. External link

Bostani, A., Tehranchi, A., & Kashyap, R. (2012). Engineering of effective second-order nonlinearity in uniform and chirped gratings. Journal of the Optical Society of America B: Optical Physics, 29(10), 2929-2934. External link

Tehranchi, A., & Kashyap, R. (2012). Flattop Efficient Cascaded X⁽²⁾ (SFG + DFG)-Based Wideband Wavelength Converters Using Step-Chirped Gratings. IEEE Journal of Selected Topics in Quantum Electronics, 18(2), 785-793. External link

Ahlawat, M., Tehranchi, A., Pandiyan, K., Cha, M., & Kashyap, R. (2012). Tunable All-Optical Wavelength Broadcasting in a PPLN With Multiple Qpm Peaks. Optics Express, 20(24), 27425-27433. External link

Ahlawat, M., Tehranchi, A., Pandiyan, K., Cha, M., & Kashyap, R. (2012, June). Tunable wavelength broadcasting in a PPLN with multiple QPM peaks [Paper]. Access Networks and In-house Communications (ANIC 2012), Colorado Springs, CO, United states. External link

2011

Mortazy, E., Le Drogoff, B., Azana, J., Chaker, M., & Tehranchi, A. (2011, July). Chirped Bragg grating in silicon based rib waveguide [Paper]. 7th International Workshop on Fibre and Optical Passive Components, WFOPC2011, Montréal, Québec. External link

Tehranchi, A., Morandotti, R., & Kashyap, R. (2011, July). Efficient flattop ultra-wideband wavelength converters based on double-pass cascaded sum and difference frequency generation using engineered chirped gratings [Paper]. 10th Nonlinear Optics topical meeting, Kauai, Hawaii. Published in Optics Express, 19(23). External link

Tehranchi, A., & Kashyap, R. (2011, July). Efficient Ultra-Wideband Wavelength Converters Based on Double-Pass Cascaded SFG + DFG Using Engineered QPM Gratings [Paper]. Nonlinear Optics : materials, fundamentals and applications 2011, Dauai, Hawaii, USA. External link

Tehranchi, A., & Kashyap, R. (2011, January). Flattop wideband wavelength converters based on cascaded sum and difference-frequency generation using step-chirped gratings [Paper]. Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X, San Francisco, CA, United states. External link

Mortazy, E., Stateikina, I., Tehranchi, A., Delprat, S., Chaker, M., & Wu, K. (2011). Low-loss CaxBa1-xNb2O 6 ridge waveguide for electro-optic devices. Microelectronic Engineering, 88(3), 218-221. External link

Tehranchi, A., Ahlawat, M., Xu, C.-Q., & Kashyap, R. (2011, July). Novel techniques for guided-wave wavelength conversion [Paper]. 16th Opto-Electronics and Communications Conference (OECC 2011), Kaohsiung, Taiwan. External link

Bostani, A., Tehranchi, A., & Kashyap, R. (2011, July). Study of apodization of aperiodically poled lithium niobate (APPLN) for second harmonic generation (SHG) [Paper]. 7th International Workshop on Fibre and Optical Passive Components (WFOPC 2011), Montréal, Québec. External link

2010

Tehranchi, A. (2010). Broadband Quasi-Phase-Matched Wavelength Converters [Ph.D. thesis, École Polytechnique de Montréal]. Available

Tehranchi, A., & Kashyap, R. (2010, June). Pump-Detuned Double-Pass cSFG/DFG-Based Wavelength Converters in Lossy PPLN Waveguides [Paper]. Nonlinear Photonics 2010, Karlsruhe, Germany. External link

Tehranchi, A., & Kashyap, R. (2010). Wideband wavelength conversion using double-pass cascaded x(2):x(2) interaction in lossy waveguides. Optics Communications, 283(7), 1485-1488. External link

2009

Kashyap, R., Tehranchi, A., & Xu, C.-Q. (2009, July). Efficient broadband frequency conversion using engineered apodized x(2) gratings and fundamental harmonic resonance [Paper]. 14th OptoElectronics and Communications Conference, Hong Kong, China. External link

Tehranchi, A., & Kashyap, R. (2009). Efficient wavelength converters with flattop responses based on counterpropagating cascaded SFG and DFG in low-loss QPM LiNbO₃ waveguides. Optics Express, 17(21), 19113-19119. External link

Tehranchi, A., & Kashyap, R. (2009, October). Flattop broadband wavelength converters based on double-pass cascaded SFG + DFG in quasi-phase matched waveguides [Paper]. IEEE LEOS Annual Meeting Conference, Belek-Antalya, Turkey. External link

Tehranchi, A., & Kashyap, R. (2009, August). High-efficiency pump-resonant quasi-phase-matched frequency doublers with flattop broadband responses [Paper]. Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, San Diego, CA, United states. External link

List generated on: Mon Jul 22 08:38:16 2024 EDT